Definition of accelerate verb from the Oxford Advanced American Dictionary

     

    accelerate

     verb
    verb
    NAmE//əkˈsɛləˌreɪt//
     
    Verb Forms present simple I / you / we / they accelerate
     
    he / she / it accelerates
     
    past simple accelerated
     
    -ing form accelerating
     
     
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  1. 1 [intransitive, transitive] to happen or to make something happen faster or earlier than expected Inflation continues to accelerate. accelerate something Exposure to the sun can accelerate the aging process.
  2. 2 [intransitive] (of a vehicle or person) to start to go faster The runners accelerated smoothly around the bend. The car accelerated to pass me. opposite decelerate
See the Oxford Advanced Learner's Dictionary entry: accelerate